In the dynamic realm of new energy batteries, the explosion-proof valve emerges as a critical safety apparatus, meticulously crafted to avert potential explosions during charging, discharging, or unforeseen circumstances like overvoltage or overheating. This comprehensive article delves into the intricacies of explosion-proof valves for new energy batteries, shedding light on their concept, principles, bursting values, and application scenarios.

I. Unveiling the Concept and Principles of Explosion-Proof Valves for New Energy Batteries

Within the framework of battery modules or energy storage devices, the explosion-proof valve assumes the pivotal role of a safety valve. Its primary function revolves around monitoring the internal pressure and temperature of the battery. When these parameters surpass predetermined thresholds, the explosion-proof valve strategically ruptures, releasing built-up pressure and mitigating the risk of explosive incidents.

II. Understanding Bursting Values: Key Metrics of Explosion-Proof Valves for New Energy Batteries

Bursting values, a crucial aspect of explosion-proof valves, signify the predetermined pressure or temperature at which these valves activate. This value is intricately tied to the specific battery type, capacity, and operational conditions. Our exploration will predominantly focus on the pressure bursting value.

Pressure Bursting Value Demystified

Expressed in Pascals (Pa), the pressure bursting value is meticulously determined based on the battery’s operational dynamics and adheres to safety standards. Typically falling within the range of 0.5 to 1.0 MPa, this metric signifies the pressure threshold at which the valve promptly opens, releasing internal gas. Selection of the bursting value demands consideration of factors such as maximum charging and discharging pressures, temperature fluctuations, current intensity, and other pertinent parameters.

The decision-making process also encompasses a thorough evaluation of the manufacturing intricacies and material characteristics of the explosion-proof valve. This ensures a reliable opening mechanism and controlled gas release within predefined limits, safeguarding the valve against failures or damages attributed to bursting value selection.

Engineering Design: The Key to Determining Bursting Values

The engineering design phase plays a pivotal role in ascertaining the bursting value for explosion-proof valves in new energy batteries. This numerical value varies across diverse battery types and design specifications. Grounded in considerations of the battery’s maximum operating pressure and the material’s pressure resistance, the bursting value is meticulously determined to guarantee safe operations within the designated pressure range. This approach facilitates the swift release of pressure if it surpasses safety limits, effectively averting potential battery explosions.

The Evolving Landscape: Challenges Faced by Battery Manufacturers

In tandem with the burgeoning variety of new energy vehicle models, the production costs of battery explosion-proof valves are on a gradual upswing, leading to an increased diversity of available valves. This surge in options poses challenges for battery manufacturers seeking compatible valve suppliers, hindering the large-scale standardization of power battery production and impeding cost reduction initiatives. Even after successfully navigating stringent tests, an extended verification period becomes imperative to ensure the feasibility of these valves. Original equipment manufacturers, grappling with these challenges, find the matching and procurement process significantly more complex.

explosion-proof valves
explosion-proof valves